What this means
The IEEE assigned the MA-L block 68234B to Nihon Dengyo Kousaku. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 68:23:4B, it is Nihon Dengyo Kousaku hardware.
Frequently Asked Questions
Who owns MAC prefix 68234B?
68234B is registered to Nihon Dengyo Kousaku in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Nihon Dengyo Kousaku's block covers 16,777,216 addresses.
What devices use 68234B?
Any network device with a MAC address starting 68:23:4B was manufactured by or for Nihon Dengyo Kousaku.